Finding the Fourth Proportional to 45,497,919.60, 68,246,879.40 and 30,192,418.80
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Solution
The fourth proportional to 45,497,919.60, 68,246,879.40 and 30,192,418.80 is: 45,288,628.20
Step by Step Solution
- Step 1: Write the proportion equation
45,497,919.60 : 68,246,879.40 = 30,192,418.80 : x - Step 2: Convert to fraction form
45,497,919.60/68,246,879.40 = 30,192,418.80/x - Step 3: Cross multiply
45,497,919.60x = 68,246,879.40 × 30,192,418.80 - Step 4: Simplify right side
45,497,919.60x = 2,060,538,364,637,893 - Step 5: Solve for x
x = 2,060,538,364,637,893/45,497,919.60 - Step 6: Final answer
x = 45,288,628.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.